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Old 04-26-2012, 02:10 PM
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heads up

anyone have an idea why my 2012 3.6 would start a low engine tapping ,comes and goes ?
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Old 04-26-2012, 02:30 PM
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Re: heads up

can you tell from what area of the engine its coming from?
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Old 04-26-2012, 02:48 PM
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Re: heads up

sounds like lower left
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Old 04-26-2012, 10:14 PM
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Re: heads up

Is it when you start it when motor is cold? My WK2 penstar engine did this daily... went away after a few seconds and was told its normal
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Old 04-27-2012, 02:28 PM
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Re: heads up

I know of some defective heads that people have had but that noise is really loud. There's a very long thread over on jeepforum.com about it.
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Old 05-04-2012, 03:45 PM
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Re: heads up

Cam phasers constantly adjusting and evap solenoid is very loud. Mine does it as well. If yours was built prior to 01/24/12 take it in to the dealer for a PCM update.
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